diff --git a/dev-requirements.txt b/dev-requirements.txt
index cbf2c77..9c8da08 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,7 +2,7 @@
 requests==2.32.5
 beautifulsoup4==4.14.3
 tqdm==4.67.3
-icalendar==6.3.2
+icalendar==7.0.2
 
 # test
 pytest==8.4.2